Saved game data

The following article contains original research by Dan's Friend.

This page documents MediEvil saved game data formats.

MediEvil (1998 original)

A PlayStation Memory Card data block consists of 64 frames. Each frame is 128 bytes long.

Frame 0

This frame is the header for a block of PS1 saved data.

Name	Offset	Length	Value	Meaning
Magic	0x0	2	SC	Signature for all PS1 saved game data.
Icon flag	0x2	1	11	This means the icon for the saved game consists of a single image.
Number of blocks	0x3	1	1	How many blocks the save will take up on a memory card.
Title	0x4	64	ＭｅｄｉＥｖｉｌ	Name of the saved game in Shift JIS format.
Icon colour palette	0x96	32		Saved game icon colour palette.

Frame 1

This frame is used to store a PS1 saved game icon:

Frames 2-3

These frames are reserved for additional images in case the icon is meant to be animated, but are unused by MediEvil.

Frames 4-34

These frames contain the actual MediEvil saved game data.

File header

The header is 12 bytes long.

Name	Offset	Length	Value	Meaning
Magic	0x0	4	60SM	Signature for MediEvil saved game data.
Saved games	0x4	1	0-2	The number of saved games.

Saved games

The file can hold a maximum of three saved games. Each saved game is 1360 bytes long.

Saved game

Name	Offset	Length	Value	Meaning
Checksum	0x0	4	Number	Used to verify save game integrity. Uses the Checksum-16 algorithm.
Save game number	0x6	1	Number	Number of times the game has been saved.
Time played	0x1C	4	Number	Time the player has played the game for. Displayed on the tombstones in the main menu.

Frames 35 to 63

These are unused.

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